White-collared Swift (Streptoprocne zonaris)

White-collared Swift

[order] APODIFORMES | [family] Apodidae | [latin] Streptoprocne zonaris | [UK] White-collared Swift | [FR] Martinet a col blanc | [DE] Halsband-Segler | [ES] Vencejo Acollarado | [NL] Witkraaggierzwaluw

Subspecies

Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range
Streptoprocne zonaris LA widespread, also Caribbean
Streptoprocne zonaris albicincta s Venezuela and the Guianas
Streptoprocne zonaris altissima higher elevations of Colombia and Ecuador
Streptoprocne zonaris bouchellii Nicaragua to Panama
Streptoprocne zonaris kuenzeli Bolivia and nw Argentina
Streptoprocne zonaris mexicana s Mexico, Belize
Streptoprocne zonaris minor n Venezuela and Trinidad
Streptoprocne zonaris pallidifrons Greater and Lesser Antilles
Streptoprocne zonaris subtropicalis Colombia, w Venezuela and Peru
Streptoprocne zonaris zonaris e Bolivia, Paraguay, s Brazil and n Argentina

Physical charateristics

White-collared Swift is a massive and powerful species, 20-22 cm long, and weighing 90-96 g. It has a very slightly forked tail, which often appears square. The adults are black, glossed blue on the back, and have a white collar, broader and duller on the breast than the hindneck. Young birds are duller than adults, and the collar is reduced or absent.

Listen to the sound of White-collared Swift

[audio:http://www.aviflevoland.nl/sounddb/W/White-collared Swift.mp3]

Copyright remark: Most sounds derived from xeno-canto

wingspan min.: 48 cm wingspan max.: 53 cm
size min.: 21 cm size max.: 23 cm
incubation min.: 30 days incubation max.: 35 days
fledging min.: 45 days fledging max.: 55 days
broods: 1   eggs min.: 1  
      eggs max.: 3  

Range

Latin America : widespread, also Caribbean

Habitat

It breeds in the mountains and foothills, but forages over a much larger area, including lowlands. Preferred habitats include mountains, coniferous forests, open forests, and grasslands with scattered trees.

Reproduction

Monogamous. Breeds single or in colonies up to 12 pairs. This very large swift builds a saucer nest of mud, moss and chitin on a ledge in a cave, usually behind a waterfall. The nest is lined with fine grass, moss or dry leaves. They lays two white eggs between March and July. Eggs are incubated by both parents for a period of 30-35 days. The young are usually fed once per day and fledge after about 45-55 days.

Feeding habits

White-collared Swift feeds in flight on flying insects, including beetles, bees and flying ants.

Conservation

This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
White-collared Swift status Least Concern

Migration

Sedentary throughout range, but some populations migrate. Vargants known from USA and lesser Antilles.

Distribution map

White-collared Swift distribution range map

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